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121020222210222 = 231372511580337117
BaseRepresentation
bin11011100001000100110111…
…010110110000000010101110
3120212111102100100212011210110
4123201010313112300002232
5111330243403341211342
61105215531135320450
734330264631660256
oct3341046726600256
9525442310764713
10121020222210222
113561942a4a0a35
12116a6643680126
13526b20913287a
1421c55a50c2966
15ded0313ccc9c
hex6e11375b00ae

121020222210222 has 64 divisors (see below), whose sum is σ = 244800590840064. Its totient is φ = 39882478176000.

The previous prime is 121020222210179. The next prime is 121020222210257. The reversal of 121020222210222 is 222012222020121.

It is a super-2 number, since 2×1210202222102222 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3260488008 + ... + 3260525124.

It is an arithmetic number, because the mean of its divisors is an integer number (3825009231876).

Almost surely, 2121020222210222 is an apocalyptic number.

121020222210222 is an abundant number, since it is smaller than the sum of its proper divisors (123780368629842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121020222210222 is a wasteful number, since it uses less digits than its factorization.

121020222210222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53313.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 121020222210222 its reverse (222012222020121), we get a palindrome (343032444230343).

The spelling of 121020222210222 in words is "one hundred twenty-one trillion, twenty billion, two hundred twenty-two million, two hundred ten thousand, two hundred twenty-two".

Divisors: 1 2 3 6 137 251 274 411 502 753 822 1506 15803 31606 34387 37117 47409 68774 74234 94818 103161 111351 206322 222702 2165011 3966553 4330022 5085029 6495033 7933106 9316367 10170058 11899659 12990066 15255087 18632734 23799318 27949101 30510174 55898202 543417761 586559951 1086835522 1173119902 1276342279 1630253283 1759679853 2552684558 3260506566 3519359706 3829026837 7658053674 80358713287 147226547701 160717426574 241076139861 294453095402 441679643103 482152279722 883359286206 20170037035037 40340074070074 60510111105111 121020222210222